Heavy Rains Expected to Impact Parts of the Eastern U.S.

A strong cold front will produce heavy rain will create mainly localized areas of flash flooding to the Great Lakes and Ohio Valley. There is another flash flood threat in the parts of the Southeast and Southern Appalachians.
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Hazardous Weather Conditions

For More Weather Information:

Miami - South Florida Local Forecast Office

4NM WSW Biscayne Bay FL

Marine Point Forecast

[NOTICE]
  • Today

    Thunderstorms Likely

    E 9kt

    High: 86 °F

  • Tonight

    Chance Thunderstorms

    NNE 9kt

    Low: 80 °F

  • Wednesday

    Thunderstorms Likely

    NNE 6kt

    High: 86 °F

  • Wednesday
    Night

    Showers Likely

    Light Wind

    Low: 79 °F

  • Thursday

    Showers Likely

    Light Wind

    High: 86 °F

  • Thursday
    Night

    Showers Likely

    Light Wind

    Low: 79 °F

  • Friday

    Showers Likely

    Winds IncreasingSE 6kt

    High: 85 °F

  • Friday
    Night

    Showers Likely

    Light Wind

    Low: 80 °F

  • Saturday

    Showers Likely

    Winds IncreasingSSE 6kt

    High: 86 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:01 am EDT Sep 21, 2021
Forecast Valid: 5am EDT Sep 21, 2021-6pm EDT Sep 27, 2021

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Detailed Forecast


Synopsis: The periphery of a weak surface high pressure remains established over South Florida. Scattered showers and thunderstorms are possible over area waters today. Scattered showers and thunderstorms will also remain possible from time to time over all of the local waters over the next few days. Winds and waves could be locally higher in any shower or thunderstorm activity.

.GULF STREAM HAZARDS...None.

The approximate location of the west wall of the Gulf Stream as of Sep 21, 2021 at 1200 UTC...

13 nautical miles east of Fowey Rocks. 20 nautical miles east northeast of Port Everglades. 8 nautical miles east northeast of Lake Worth. 7 nautical miles northeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

Today
E wind 7 to 9 kt. Showers and thunderstorms likely, mainly after 2pm. Bay waters a light chop becoming smooth.
Tonight
NNE wind 7 to 9 kt. A chance of showers and thunderstorms, mainly before midnight. Bay waters a light chop.
Wednesday
NNE wind around 6 kt becoming SSE in the afternoon. Showers and thunderstorms likely, mainly after 2pm. Bay waters smooth.
Wednesday Night
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Bay waters smooth.
Thursday
Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Bay waters smooth.
Thursday Night
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Bay waters smooth.
Friday
Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Bay waters smooth.
Friday Night
Variable winds 5 kt or less. Showers and thunderstorms likely. Bay waters smooth.
Saturday
Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. Showers and thunderstorms likely. Bay waters smooth.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 25.6°N 80.23°W
Last Update: 4:01 am EDT Sep 21, 2021
Forecast Valid: 5am EDT Sep 21, 2021-6pm EDT Sep 27, 2021
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